Cylinder escapement, quarter hour repeater.
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Hour and quarter touch repeater with Debaufre escapement modified by Pierre Le Roy, enamelled case.
“Rèpètition de Première Classe” con scappamento a cilindro in rubino, e jumping hour venduto a monsieur Ternaux (Étienne Nicolas Louis Ternaux ) , il 2 Brumaio anno 13 (24 ottobre 1804) per 1.800 FF.
Ruby lever escapement.
Tourbillon with rotation per minute
Quarter hour repeater with lateral lever escapement
Straight lever escapement (attributable to Marguerite Dupont who was a watchmaker in Alençon in 1795)
“Medaillon a tact” n.3227 sold to Jérôme Bonaparte, brother of Napoleon, King of Westphalia.
“Subscription" watch, Cassa di Joly no. 1769, sold to Prince Kurakin on August 9, 1811, for 1,080 FF, returned in 1812 and resold to the Princes of Valencay on May 8, 1812, for 980 FF.”
Virgule escapement
Quarter-repeating watch with an experimental duplex-cylinder escapement, presented to Dupont de l’Eure in 1818, magistrate and politician.
Dead-beat seconds watch with double-wheel duplex escapement.
Dead seconds watch with duplex lever escapement by Jean Renaud
Lever escapement and thermal compensation
“Resilient lever” lever escapement modified by Mortimer George Cole.
Montre simple a deux aguilles a secondes sien 140 boite en or n.2429 envoyé a Melin de Londres en cadeau pour le prix de 1030 FF le 11 mai 1821. (la n.140 Montre simple à secondes, boîte d’or Vendue le 9 frimaire an 5 (29 novembre 1796) à Monsieur Lavillete 576 FF.)